backlight: lp855x: move backlight mode platform data

The brightness of LP855x devices is controlled by I2C register or PWM
input .  This mode was selected through the platform data, but it can be
chosen by the driver internally without platform data configuration.

How to decide the control mode:
  If the PWM period has specific value, the mode is PWM input.
  On the other hand, the mode is register-based.
  This mode selection is done on the _probe().

Move 'mode' from a header file to the driver private data structure,
'lp855 x'.  And correlated code was replaced.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 3 deletions

diff --git a/Documentation/backlight/lp855x-driver.txt b/Documentation/backlight/lp855x-driver.txt
index 18b06ca038ea..72e2a673f774 100644
--- a/Documentation/backlight/lp855x-driver.txt
+++ b/Documentation/backlight/lp855x-driver.txt
@@ -32,7 +32,6 @@ Platform data for lp855x
 For supporting platform specific data, the lp855x platform data can be used.
 
 * name : Backlight driver name. If it is not defined, default name is set.
-* mode : Brightness control mode. PWM or register based.
 * device_control : Value of DEVICE CONTROL register.
 * initial_brightness : Initial value of backlight brightness.
 * period_ns : Platform specific PWM period value. unit is nano.
@@ -54,7 +53,6 @@ static struct lp855x_rom_data lp8552_eeprom_arr[] = {
 
 static struct lp855x_platform_data lp8552_pdata = {
         .name = "lcd-bl",
-        .mode = REGISTER_BASED,
         .device_control = I2C_CONFIG(LP8552),
         .initial_brightness = INITIAL_BRT,
         .load_new_rom_data = 1,
@@ -65,7 +63,6 @@ static struct lp855x_platform_data lp8552_pdata = {
 example 2) lp8556 platform data : pwm input mode with default rom data
 
 static struct lp855x_platform_data lp8556_pdata = {
-        .mode = PWM_BASED,
         .device_control = PWM_CONFIG(LP8556),
         .initial_brightness = INITIAL_BRT,
         .period_ns = 1000000,